Fountain pen



June 4, 1935. H 1 CARMAN 2,003,479

FOUNTAIN PEN Filed July 28, 1934 INVENTOR 7%. A, C crummx,

BY @W ATTORNEY Patented June 4, 1935 V I p I UNITED STATES PATENT OFFICE FOUNTAIN PEN Herbert L. Carman, Arlington, N. J.

Application July 28, 1934, Serial No. 737,377

2 Claims. (Cl. 120-46) My invention relates to a bag collapsing mecha- 8, normally tends to move the plunger and therenism for fountain pens, and has reference more fore the arm I! with the roller I6 away from the particularly to a mechanism adaptable for what angle formed by the leg I of the arm I2 and the is known in the trade as the nipple type of founportion III of the washer 1. Normally, the

5 tain pen. thimble is covered by a cap 22 secured to a 5 An object of the invention is to provide an eflithreaded reduction of the plug. cient and simple mechanism for the purpose By unscrewing the cap 22, the thimble I9 is exmentioned. posed and by applying pressure thereto, the piv- In the appended drawing forming part of this oted or articulated arm I! is caused to travel application, Figure l is a fragmentary vertical with the plunger. Since the roller I6 bears on 10 section on line |-l, Figure 2, of a nipple type of one side against the stationary portion ID of the pen embodying my invention, and washer I, it forces the leg I5 of the arm I2,

Fi ur 2 is a cross-section on line 2-2, Figure 1. also engaged by the roller, to swing on the pivot Referring to the drawing, a barrel 3 is provided I I, thereby causing the presser bar I3 to move in 5 with a suitable apertured plug 4 to which the turn on its hinge with the leg I4 of the said arm 5 nipple 5 is attached in any suitable way. A tube l2, thus collapsing the bag as indicated in dash 6 extends to the plug from the feed end of the and dot lines in Figure l. The position of the pen, not shown, and through which ink is dearm and plunger is indicated by the dash and dot livered to the barrel when the nipple 5 is manipuline of the roller, pivot and thimble head when lated. the bag is collapsed. 20

The barrel 3 is provided with a shoulder above When pressure is relieved on the thimble, the the nipple to accommodate a washer I which is parts are restored to their normal position by the retained against the shoulder of the barrel by a united restituting forces of the nipple and the plug 8. The washer 1 has an aperture 9 formed spring.

by depressing a portion of said member II] to lie From the above description, it will be seen that 25 against the side of the barrel, the purpose of the nipple collapsing mechanism consists of an which will appear hereinafter. articulated arm operated by a plunger, the arm The washer has also a cross bar or pivot I I on engaging a V having a stationary and a movable which is hooked a lever l2, to which in turn is branch.

hinged a presser bar I3. I claim 30 The lever I2 in normal position under the nor- 1. In a fountain pen, a nipple, means for colmal expansion of the nipple 5 has a leg Hi therelapsing said nipple comprising a fixed member, of against the side of the barrel, and a leg I5 a lever for collapsing the nipple pivotally mountdiagonally inclined to the washer to form with ed on said member and forming therewith a V,

5 the stationary portion In of the washer, a V. a plunger, an arm pivotally connected in the One branch of said V may be moved, that is, the plunger, and a roller on said arm engaging the V. leg I5 of the lever, through the medium of a 2. In a fountain pen, a nipple, means for colroller I6 engaging the leg I5 on the portion In lapsing said nipple, comprising a stationary of the washer I. member, a lever for collapsing the nipple pivotally The roller I6 is carried by an arm I'I, pivotally mounted in the stationary member, said lever 40 mounted at 23 in the recess of a plunger I8. The having a leg extending diagonally from said staplunger is secured to a thimble I9 which is free tionary member and forming therewith a V, a

to slide in a recess provided in the plug 8. The plunger, an arm pivotally mounted in said plungplug 8 carries also a sleeve 20 in which the plunger, and a roller on said arm engaging the leg and er is free to slide. A spring 2| on the plunger, the stationary member.

interposed between the thimble I9 and the plug HERBERT L. CARMAN. 

